CN103924811B - A kind of preparation method of large-scale cylindrical storage tank - Google Patents

A kind of preparation method of large-scale cylindrical storage tank Download PDF

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Publication number
CN103924811B
CN103924811B CN201410183795.4A CN201410183795A CN103924811B CN 103924811 B CN103924811 B CN 103924811B CN 201410183795 A CN201410183795 A CN 201410183795A CN 103924811 B CN103924811 B CN 103924811B
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tank body
body component
stiffening ring
lifting
floor
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CN103924811A (en
Inventor
胡智军
涂玉强
高灵敏
于润明
唐秀宜
熊建武
韩国君
胡方华
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China Gezhouba Group No 1 Engineering Co Ltd
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China Gezhouba Group No 1 Engineering Co Ltd
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Abstract

A preparation method for large-scale cylindrical storage tank, comprises the following steps: be uniformly distributed along the circumference multiple lifting column in tank body, and lifting column is provided with electric block; With multi-disc arc pipe sheet assembling first floor tank body component, install lifting stiffening ring at first floor tank body component near the inside of bottom, lifting stiffening ring is provided with hanger; With electric block lifting first floor tank body component; With multi-disc arc pipe sheet assembling second layer tank body component below first floor tank body component, operation electric block makes first floor tank body component drop on the upper end of second layer tank body component, is welded to connect first floor tank body component and second layer tank body component; By that analogy, be whole tank body by multilayer tank body Member Welding; The installation being realized large-scale cylindrical storage tank by above-mentioned steps is made.The present invention reduces the impact of intermediate transportation storing step for tank body component, reduce the use cost of lifting appliance, improve fabrication and installation efficiency and also improve tank body quality, and reduce system peace cost.

Description

A kind of preparation method of large-scale cylindrical storage tank
Technical field
The present invention relates to the making field of tank body, particularly can be used for a kind of preparation method of large-scale cylindrical storage tank of water power, building operations or chemical field.
Background technology
Large-scale circular storage tank is commonly used in power station and the construction of some other industry, the feature of this kind of round bin is that volume is large, thus its diameter and highly all larger, the large-scale cylindrical storage tank diameter that such as certain engineering adopts reaches 16 meters, be made up of the tank body Member Welding of 12 layers every layer 1.5 meters high, individual layer is heavily 5154 kilograms as calculated, and gross weight is 61848 kilograms.Making the tank body material of this kind of storage tank--steel plate is mainly 6mm-10mm steel sheet, and thus its weight is comparatively light comparatively speaking, and intensity is less.If the common fabrication and installation method of Bian, namely first make tile and again tile is assembled into a joint hollow cylinder integral hoisting or the lifting of single tile, this method requires to do multiple stiffening ring when making tile with angle steel, this not only adds cost of manufacture, no matter be simultaneously single tile or be combined into integral hoisting, with relatively large crane, need also there is the construction safety risk of personal height operation at higher level place, costly, efficiency is low simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of large-scale cylindrical storage tank, can not adopt large-scale crane, reduces cost of manufacture, also without personal height operation, improves the safety of storage tank system peace.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of preparation method of large-scale cylindrical storage tank, comprises the following steps:
One, the tank body mounting platform in tank body is uniformly distributed along the circumference multiple lifting column, and lifting column is provided with electric block, and the height of lifting column is higher than one deck tank body component;
Two, with multi-disc arc pipe sheet assembling first floor tank body component, install lifting stiffening ring at first floor tank body component near the inside of bottom, position corresponding with lifting column on lifting stiffening ring is provided with hanger;
Three, first floor tank body component is lifted by crane, until bottom is higher than the oneself height of first floor tank body component with electric block by hanger;
Four, below first floor tank body component with multi-disc arc pipe sheet assembling second layer tank body component, operation electric block make first floor tank body component drop on the upper end of second layer tank body component, be welded to connect first floor tank body component and second layer tank body component;
Five, dismantling lifting stiffening ring and be installed to second layer tank body component near the inside of bottom, with electric block by hanger lifting first floor and second layer tank body component, by that analogy, is whole tank body by multilayer tank body Member Welding;
The installation being realized large-scale cylindrical storage tank by above-mentioned steps is made.
In preferred scheme, tank body mounting platform is also provided with annular platform for lining, time assembled, bottom one deck tank body component is positioned at the cannelure of annular platform for lining.
Described lifting stiffening ring forms ring-type by the stiffening ring structural member of multistage arc;
Nutplate is welded with in one end of single stiffening ring structural member, nutplate is provided with puller bolt, the other end of stiffening ring structural member is welded with by head part, and be provided with the stopper slot for holding puller bolt termination by head part, the middle part of stiffening ring structural member is welded with hanger.
Described stopper slot lower end is open, nutplate and by the lower end of head part lower than the lower end of stiffening ring structural member, during installation, directly stiffening ring structural member is placed on tank body mounting platform or annular platform for lining;
After adjusting position, every root puller bolt is held out against adjacent by head part, even if whole lifting stiffening ring diameter increases, form interference fit with tank body component inwall.
Described lifting column quantity is corresponding with the quantity of stiffening ring structural member.
Inwall or the outer wall medium position of described every one deck tank body component are also welded with stiffening ring.
In step 3, after lifting puts in place, at the top of first floor tank body component, top cover is installed.
The preparation method of a kind of large-scale cylindrical storage tank provided by the invention, by adopting uniform lifting column in tank interior, the mode of installing from tank body top layer, decreases the reinforced member in installation process, saves structural meterials.Method of the present invention is synchronously carried out by manufacture and installation simultaneously, owing to decreasing the impact of intermediate transportation storing step for tank body component, therefore not only improve fabrication and installation efficiency and also improve tank body quality, and reduce system peace cost, especially large-scale lifting appliance is not adopted, reduce the use cost of lifting appliance, be suitable for the large-scale cylindrical storage tank making large scale, low cost.In preferred scheme, the lifting stiffening ring structure of employing, reduces the difficulty of lifting, decreases the work at every one deck tank body Member Welding hanger, and can reuse, also reduce use cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is overall structure schematic top plan view of the present invention.
Fig. 2 is the structural representation of lifting column in the present invention.
Fig. 3 is the schematic diagram of single-unit stiffening ring structural member in the present invention.
Fig. 4 is the A-A cross-sectional schematic of Fig. 3.
Fig. 5 is the stereogram by head part in the present invention.
Fig. 6 is the schematic flow sheet of the inventive method.
In figure: tank body 1, lifting stiffening ring 2, by head part 21, stiffening ring structural member 22, hanger 23, puller bolt 24, nutplate 25, stopper slot 26, lifting column 3, electric block 4, tank body mounting platform 5, annular platform for lining 6, stiffening ring 7.
Detailed description of the invention
Embodiment 1:
As in Fig. 1 ~ 6, a kind of preparation method of large-scale cylindrical storage tank, comprises the following steps:
One, the tank body mounting platform 5 in tank body 1 is uniformly distributed along the circumference multiple lifting column 3, and lifting column 3 is provided with electric block 4, and the height of lifting column 3 is higher than one deck tank body component;
Two, assembled first floor tank body component is welded with multi-disc arc section of jurisdiction,
In preferred scheme, inwall or the outer wall medium position of described every one deck tank body component are also welded with stiffening ring 7.
Install lifting stiffening ring 2 at first floor tank body component near the inside of bottom, position corresponding with lifting column 3 on lifting stiffening ring 2 is provided with hanger 23;
In preferred scheme, tank body mounting platform 5 is also provided with annular platform for lining 6, time assembled, bottom one deck tank body component is positioned at the cannelure of annular platform for lining 6.Structure thus, the welding being also convenient to each arc section of jurisdiction is assembled.
Lifting stiffening ring 2 in this example can be welded on first floor tank body component near bottom position, or the mode as employing tensioner described later is flexibly connected.
Three, first floor tank body component is lifted by crane with electric block 4 by hanger 23, until bottom is higher than the oneself height of first floor tank body component;
In preferred scheme, in step 3, after lifting puts in place, in the welded top of first floor tank body component, top cover is installed.Because lifting column 3 is all positioned at tank body 1, therefore can not impact welded and installed top cover, and highly not high, constructability.
Four, below first floor tank body component with multi-disc arc pipe sheet assembling second layer tank body component, operation electric block 4 make first floor tank body component drop on the upper end of second layer tank body component, be welded to connect first floor tank body component and second layer tank body component; The operating process of step 2 ~ tetra-as shown in Figure 6.
Five, dismantle lifting stiffening ring 2 and be installed to the inside of second layer tank body component near bottom, first floor and second layer tank body component is lifted by crane by hanger 23 with electric block 4, multilayer tank body Member Welding by that analogy, is whole tank body 1 by assembled welding third layer tank body component;
Realize the installation of large-scale cylindrical storage tank from upper strata to lower floor by above-mentioned steps to make.
Preferred scheme is as in Fig. 1,3 ~ 5, and described lifting stiffening ring 2 forms ring-type by the stiffening ring structural member 22 of multistage arc;
Nutplate 25 is welded with in one end of single stiffening ring structural member 22, nutplate 25 is provided with puller bolt 24, the other end of stiffening ring structural member 22 is welded with by head part 21, be provided with the stopper slot 26 for holding puller bolt 24 termination by head part 21, the middle part of stiffening ring structural member 22 is welded with hanger 23.
In preferred scheme, described stopper slot 26 lower end is open, nutplate 25 and by the lower end of head part 21 lower than the lower end of channel-section steel in stiffening ring structural member 22, during installation, directly stiffening ring structural member 22 is placed on tank body mounting platform 5 or annular platform for lining 6;
After adjusting position, every root puller bolt 24 is held out against adjacent by head part 21, even if whole lifting stiffening ring 2 diameter increases, form interference fit with tank body component inwall.
In preferred scheme, described lifting column 3 quantity is corresponding with the quantity of stiffening ring structural member 22.
Embodiment 2:
On the basis of embodiment 1, with example further instruction:
1, the tank body mounting platform 5 of storage tank is first carried out, and at tank body mounting platform 5 relevant position pre-buried installation lifting column 3 and assembled annular platform for lining 6 built-in fitting;
2, according to the height of every layer of hollow cylinder and tank body component, usually be as the criterion with the width of commercial steel plate, general plate is wide is 1.5 meters or 2 meters, and the gross weight of whole storing tank body designs height and the quantity of lifting column, specifically describes fabrication and installation method for certain sandstone batch can:
Certain sandstone batch can diameter 16m, high 18m, tank body material is that 8mm steel plate is aided with small part angle steel and makes stiffening ring 7, the wide 1.5m of single steel plate, long 8.37m, roll bending blanking scale, totally 12 layers, weld a stiffening ring with 70 angle steel in the middle of every layer, individual layer is heavily 5154 kilograms as calculated, and gross weight is 61848 kilograms.Formulate installation production program accordingly as follows:
1, on tank body mounting platform 5 with the tank body base plate center of circle for the center of circle, diameter be 15.5m the center of circle on the high lifting column 3 for 2.5m of uniform setting 8, each lifting column 3 is hung the electric block 4 that a hoisting weight is 10 tons.
2, bend with the channel-section steel of 20mm specification the lifting stiffening ring that a diameter is 16m.Because 8mm steel plate is thinner, if be directly arranged on 8mm steel plate by hanger, when carrying out multilayer lifting, easily make tank body steel plate deformed, even can't bear the heavy load, designing and producing of lifting stiffening ring is in the same manner as in Example 1, is not described further at this.Lifting stiffening ring is installed on the about 150mm place, bottom of the hollow cylinder Inner ring from each lifting.
3, on the base plate of tank body mounting platform 5, build one higher than base plate 40mm ~ 50mm, wide is the annular platform for lining 6 of 300mm, and annular platform for lining 6 central diameter is 16m.
4, rolled to eliminate the internal stress of steel plate at plate bending rolls by the steel plate of 1.5m × 8.37m, angle steel also rolls accordingly.
5, the steel plate after eliminating stress is hung the circular arc tile that the enterprising pedestrian's work of annular platform for lining 6 is bent into diameter 16m, and it is fixing to carry out suitably being shaped.Second also identical, by that analogy and to form a diameter be the hollow cylinder of 16m, welded weld seam and the stiffening ring 7 made of angle steel of burn-oning.
6, lifting stiffening ring 2 movable described in embodiment 1 is arranged in hollow cylinder and tank body component on request, holds out against with puller bolt 24 between each section of stiffening ring structural member 22 of lifting stiffening ring 2, and suitably firm.Can correct tank body component circularity, can be used for is the suspension hook of electric block 4 simultaneously.
7, after the chaining of 8 electric blocks being adjusted length, 8 electric blocks when simultaneously opening, hang annular platform for lining 6 about 1500mm+150mm place by the tank body component of first floor and tank body 1 top layer, after it is stable, then carry out the assembled of second layer tank body component.For needing the tank body installing top cover, first can install before making second layer tank body component and making top cover.
8, second layer tank body component assembly good after, start electric block transfer first floor tank body component and dock with the second layer is assembled, weld docking circumferential weld.
9, unload the lifting stiffening ring being arranged on first floor tank body member bottom section, and be arranged on second layer tank body member bottom section appropriate location.Method with first floor Method for Installation, and carries out the integral hoisting of first floor and second layer tank body component, carries out one, two by that analogy, the integral hoisting of three layers, directly causes and all tank body installations are completed.
10, remove bottom annular platform for lining 6, entirety puts down tank body to realize the connection of tank body and base plate.Complete the fabrication and installation process of whole batch can.
The present invention is by the application in the large-scale band top cover oil storage tank system peace in eight, Ji Mou county on probation in some hydropower station six large-scale sandstone storage tank system peace, and effect is all very good.

Claims (7)

1. a preparation method for large-scale cylindrical storage tank, is characterized in that comprising the following steps:
One, the tank body mounting platform (5) in tank body (1) is uniformly distributed along the circumference multiple lifting column (3), and lifting column (3) is provided with electric block (4), and the height of lifting column (3) is higher than one deck tank body component;
Two, with multi-disc arc pipe sheet assembling first floor tank body component, install lifting stiffening ring (2) at first floor tank body component near the inside of bottom, the upper position corresponding with lifting column (3) of lifting stiffening ring (2) is provided with hanger (23);
Three, first floor tank body component is lifted by crane, until bottom is higher than the oneself height of first floor tank body component with electric block (4) by hanger (23);
Four, below first floor tank body component with multi-disc arc pipe sheet assembling second layer tank body component, operation electric block (4) make first floor tank body component drop on the upper end of second layer tank body component, be welded to connect first floor tank body component and second layer tank body component;
Five, dismantling lifting stiffening ring (2) and be installed to second layer tank body component near the inside of bottom, with electric block (4) by hanger (23) lifting first floor and second layer tank body component, by that analogy, is whole tank body (1) by multilayer tank body Member Welding;
The installation being realized large-scale cylindrical storage tank by above-mentioned steps is made.
2. the preparation method of a kind of large-scale cylindrical storage tank according to claim 1, it is characterized in that: on tank body mounting platform (5), be also provided with annular platform for lining (6), time assembled, bottom one deck tank body component is positioned at the cannelure of annular platform for lining (6).
3. the preparation method of a kind of large-scale cylindrical storage tank according to claim 1, is characterized in that: described lifting stiffening ring (2) forms ring-type by the stiffening ring structural member (22) of multistage arc;
Nutplate (25) is welded with in one end of single stiffening ring structural member (22), nutplate (25) is provided with puller bolt (24), the other end of stiffening ring structural member (22) is welded with by head part (21), be provided with the stopper slot (26) for holding puller bolt (24) termination by head part (21), the middle part of stiffening ring structural member (22) is welded with hanger (23).
4. the preparation method of a kind of large-scale cylindrical storage tank according to claim 3, it is characterized in that: described stopper slot (26) lower end is open, nutplate (25) and by the lower end of head part (21) lower than the lower end of stiffening ring structural member (22), during installation, directly stiffening ring structural member (22) is placed on tank body mounting platform (5) or annular platform for lining (6);
After adjusting position, every root puller bolt (24) is held out against adjacent by head part (21), even if whole lifting stiffening ring (2) diameter increases, form interference fit with tank body component inwall.
5. the preparation method of a kind of large-scale cylindrical storage tank according to claim 4, is characterized in that: described lifting column (3) quantity is corresponding with the quantity of stiffening ring structural member (22).
6. the preparation method of a kind of large-scale cylindrical storage tank according to claim 1, is characterized in that: inwall or the outer wall medium position of described every one deck tank body component are also welded with stiffening ring (7).
7. the preparation method of a kind of large-scale cylindrical storage tank according to claim 1, is characterized in that: in step 3, after lifting puts in place, installs top cover at the top of first floor tank body component.
CN201410183795.4A 2014-05-04 2014-05-04 A kind of preparation method of large-scale cylindrical storage tank Active CN103924811B (en)

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Publication number Priority date Publication date Assignee Title
CN106853954B (en) * 2015-12-08 2018-12-04 中国二冶集团有限公司 A kind of installation method for tower Storage Tank
CN106274224B (en) * 2016-03-30 2019-06-21 湖北卓能起重机械有限公司 Cucurbit clamping device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101020288A (en) * 2007-03-21 2007-08-22 沪东中华造船(集团)有限公司 Large circular tank assembling process
CN201842609U (en) * 2010-11-08 2011-05-25 中煤建筑安装工程公司第七十三工程处 Expansion ring for lifting steel structural tank body
AU2013205677A1 (en) * 2012-05-04 2013-11-21 Strad Energy Services Ltd. Modular transportable tank system and method of assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101020288A (en) * 2007-03-21 2007-08-22 沪东中华造船(集团)有限公司 Large circular tank assembling process
CN201842609U (en) * 2010-11-08 2011-05-25 中煤建筑安装工程公司第七十三工程处 Expansion ring for lifting steel structural tank body
AU2013205677A1 (en) * 2012-05-04 2013-11-21 Strad Energy Services Ltd. Modular transportable tank system and method of assembly

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